01 — OverviewExecutive Summary
Parts I and II of this series showed that Tanzania's tax revenue has grown roughly twenty-fold since 2000 and that indirect taxation — import duty plus VAT/excise combined — still supplies more than half of all tax revenue. This report goes one level deeper, isolating VAT alone (combining VAT charged on imports and VAT charged on domestic goods and services) from customs duty and excise duty, to answer a sharper question: how much does this single, specific tax instrument matter, who really bears its weight, and does Tanzania's continued reliance on it help or hurt the kind of economic growth the country needs?
The answer is not a simple "good" or "bad." VAT is, by design, one of the least distortive taxes for business investment decisions — a reason finance ministries worldwide lean on it. But it is also, by design, a tax that does not distinguish between a low-income household buying cooking oil and a high-income household doing the same, which means its burden falls disproportionately on those with the least room to absorb it. Five findings frame this report.
- VAT was Tanzania's single largest tax source for roughly a decade. Combining import and domestic VAT, it supplied 37.9% of all tax revenue in 2000-2004 — ahead of income tax's 25.8% at the time.
- Income tax overtook VAT as the top tax source around 2010, but VAT remains firmly in second place, supplying 31.2% of tax revenue in 2020-2024 — still well ahead of customs duty alone (20.5%) and excise duty (4.0%).
- VAT is structurally regressive. Because lower-income households spend a much larger share of their income on basic necessities than wealthier households do, a flat-rate consumption tax like VAT takes a proportionally larger bite out of a poorer household's budget.
- VAT revenue is more volatile than income tax revenue. It recorded the only outright year-on-year decline in the tax dataset (-1.9% in 2020, at the height of COVID-19), reflecting its tight link to consumer spending and import volumes — both highly shock-sensitive.
- The growth-versus-equity trade-off is real but manageable. VAT's relatively low distortion to investment can support headline GDP growth, but its burden on lower-income consumption can dampen the kind of broad-based, inclusive growth Tanzania's development plans (FYDP IV, Dira 2050) explicitly target — a trade-off that targeted exemptions and transparent use of proceeds can meaningfully soften.
Read this alongside TICGL's flagship Dira 2050 policy-gaps analysis
Dira 2050's ambition of broad-based, inclusive prosperity depends partly on how Tanzania's tax system distributes its burden. A tax structure still leaning heavily on a regressive consumption tax is a direct input into whether growth reaches ordinary households as intended. TICGL/TERI recommends reading this VAT-focused analysis alongside the Dira 2050 policy-gaps piece, and alongside Parts I and II of this budget series.
Read: What's Next for Tanzania's Economy? The Policy Gaps Keeping $1 Trillion Out of Reach by 2050 →About TERI — TICGL's Research Institute
This report was produced under the Tanzania Economic Research Institute (TERI), TICGL's dedicated research arm covering public finance, fiscal policy, and Tanzania's broader economic development. It is the third in a series built from the same 26-year Ministry of Finance dataset used in Parts I and II — this time isolating VAT specifically, by combining its import and domestic components, to examine it as a single policy lever in its own right. It forms part of TERI's wider Tanzania Works: The Political Economy of Shared Prosperity series, produced to be adapted directly into government, parliamentary, and development-partner policy briefs.
Visit TERI — teri.ticgl.com →02 — At a GlanceKey Numbers From the VAT Analysis
VAT vs. Income Tax: Share of Tax Revenue, 2000-2025
Source: TICGL/TERI analysis of Ministry of Finance, Government Budgetary Operations data (IMF format). VAT combines the VAT component charged on imports and the VAT component charged on domestic goods and services.
03 — MethodologyIsolating VAT: Data and Method
The Ministry of Finance's monthly data reports "taxes on imports" and "sales/VAT and excise on local goods" as two broader lines, each of which contains a specific VAT sub-component alongside customs duty (for imports) and excise duty (for domestic goods). This report's central methodological step is combining those two VAT sub-components — import VAT and domestic VAT — into a single "Total VAT" series, and separating out the remaining customs-duty-only and excise-duty-only amounts, so that VAT can be assessed on its own terms rather than blended into broader "indirect tax" categories as in Part II.
Monthly import VAT and domestic VAT figures were summed into annual totals for 2000-2025, then added together to form "Total VAT" for each year. The residual customs-duty-only amount (total import taxes minus import VAT) and excise-duty-only amount (total domestic sales/VAT/excise minus domestic VAT) were computed the same way. All four series — VAT, customs duty, excise duty, and income tax — were then expressed as shares of total tax revenue, both annually and averaged across the same five-year periods used in Parts I and II (2000-2004 through 2020-2024), to track both year-to-year volatility and longer-run structural change.
Part II already established that indirect taxation (import duty plus VAT/excise combined) supplies over half of tax revenue. But "indirect tax" as a category obscures an important distinction: VAT and customs duty behave differently, are collected differently, and have different effects on households and trade. Isolating VAT lets this report speak directly to policy questions specific to VAT rate-setting, exemptions, and refund administration — questions currently being debated in the context of Tanzania's Medium-Term Revenue Strategy.
1. VAT's Rise, Its Peak, and Its Current Rank
From #1 tax source to a strong #2For roughly the first decade of this dataset, VAT was not just an important tax in Tanzania — it was the most important one, ahead of income tax, customs duty, and every other source.
| Period | VAT (Total) | Customs Duty Only | Excise Duty Only | Income Tax |
|---|---|---|---|---|
| 2000-2004 | 37.9% | 19.0% | 7.7% | 25.8% |
| 2005-2009 | 33.8% | 20.3% | 6.4% | 29.5% |
| 2010-2014 | 27.6% | 17.0% | 7.3% | 36.1% |
| 2015-2019 | 28.3% | 15.5% | 7.3% | 33.9% |
| 2020-2024 | 31.2% | 20.5% | 4.0% | 36.2% |
Source: TICGL/TERI analysis of Ministry of Finance, Government Budgetary Operations data (IMF format). VAT = import VAT + domestic VAT, isolated from customs duty and excise duty.
Tax Revenue by Instrument, 2000-2025
Tax Instrument Mix by Five-Year Period
VAT's share peaked at 44.0% of tax revenue in a single year, 2005, before beginning a long decline to a low of 24.0% in 2014, as income tax's formalisation-driven rise accelerated. Since then, VAT's share has partially recovered, settling around 29-32% through the early 2020s — a level it has held fairly consistently even as income tax has continued to climb slightly further ahead.
What is notable is how enduring VAT's position has been: for 26 straight years, it has never fallen out of the top two tax sources, and in most years it has comfortably outpaced customs duty and excise duty combined. Any policy discussion about Tanzania's tax mix that does not treat VAT as a first-order lever — alongside income tax — is missing where a large share of government revenue genuinely comes from.
2. The Regressive Burden: Who Really Pays VAT?
Falls hardest, proportionally, on lower incomesUnlike income tax, which is designed to scale with a person's ability to pay, VAT is charged at the same rate on the same goods regardless of who is buying them. This design feature — simple and efficient to administer — has an important side effect for equity.
A household earning a modest income typically spends nearly all of it on necessities — food, transport, cooking fuel, basic household goods — almost all of which carry VAT unless specifically exempted. A wealthier household spends a much smaller share of its (larger) income on these same necessities, and can save or invest a meaningful portion of the rest, which VAT does not touch. The result: as a share of total income, VAT takes proportionally more from the household with less, even though the shilling amount paid may look similar or even smaller in absolute terms.
This is not a uniquely Tanzanian problem — it is a well-documented feature of VAT/GST systems worldwide, which is exactly why most countries pair VAT with a list of exemptions or zero-rated goods (typically staple foods, medicines, and sometimes education and health services) specifically to blunt this regressive effect. The policy question for Tanzania is not whether VAT is regressive in principle — it is — but whether the current scope and design of exemptions adequately protects lower-income households in practice, and whether that protection has kept pace as the VAT base itself has grown roughly 36-fold since 2000.
Because VAT is charged as a percentage of price rather than a fixed amount, its burden automatically rises during periods of inflation — when the price of cooking oil or transport fares increases, so does the VAT collected on it, even though household incomes may not be rising at the same pace. This link between VAT and inflation means the regressive effect described above is not constant; it intensifies precisely during the periods when lower-income households can least absorb it.
- A dedicated tax-incidence study — measuring precisely what share of income different income groups actually pay in VAT — would move this discussion from principle to hard local evidence.
- Periodically reviewing the VAT exemption list against a current basket of basic necessities, rather than an outdated one, is a low-cost, high-impact equity lever available to policymakers today.
3. VAT Revenue Is More Volatile Than Income Tax Revenue
Tightly linked to consumption & trade shocksBeyond who bears VAT's burden, there is a second, separate concern: how reliable is VAT as a revenue source for government planning purposes, compared to income tax?
VAT vs. Income Tax Revenue Growth, Year-on-Year
VAT revenue recorded the only outright year-on-year decline in this entire tax dataset: -1.9% in 2020, at the height of the COVID-19 pandemic, when consumer spending, tourism, and import volumes all contracted sharply. Income tax revenue, by contrast, continued to grow (albeit slowly, at 4.0%) that same year — a reminder that a payroll-linked tax on formally employed workers can hold up better during a demand shock than a consumption tax tied directly to real-time spending and trade.
VAT growth has also swung more widely across the whole 26-year series — from lows near zero to highs above 30% year-on-year — compared to income tax's generally steadier (though not perfectly smooth) climb. This matters directly for budget planning: a government that leans heavily on VAT is, by extension, leaning on a revenue source that is more exposed to swings in consumer confidence, import volumes, and global trade conditions than one built more on formal-sector payroll and profit taxes.
- Fiscal buffers and contingency planning should explicitly account for VAT's higher volatility, rather than assuming it will grow as smoothly as the multi-year average suggests.
- Continuing to grow the income-tax base is not just an equity improvement — it is also a stability improvement for government revenue planning.
4. Growth or Stagnation? Weighing VAT's Real Economic Effect
Depends which kind of growth you meanThis is the central question this report set out to answer, and the honest answer is: it depends on what "growth" means in the sentence.
VAT does not directly tax profit, investment, or savings — it taxes consumption at the point of sale. This makes it, in the standard economic view, one of the least distortive taxes available: it does not discourage a business from expanding, hiring, or investing the way a high corporate or income tax rate might. Because it is also relatively efficient to collect (charged at the point of sale, with input-tax credits limiting cascading), it can fund government spending — including the development spending documented in Part I — without directly dragging down aggregate investment activity or GDP growth.
Lower-income households spend nearly all of their income, which means money in their hands circulates quickly through the local economy — buying food, services, and goods from other Tanzanians. When VAT reduces that household's real purchasing power, it can dampen this consumption-driven economic activity precisely among the group most likely to spend rather than save. Over time, heavy reliance on a regressive tax, without adequate protective exemptions, can work against the kind of broad-based, inclusive growth that reduces poverty and expands the middle class — the type of growth Tanzania's own development plans (FYDP IV, Dira 2050) explicitly prioritise, even if it shows up fine in aggregate GDP statistics.
VAT can raise GDP-friendly revenue while simultaneously working against inclusive, poverty-reducing growth — these are not contradictory claims, because GDP growth and inclusive growth are not the same thing. The practical policy conclusion is not to abandon VAT (few, if any, well-functioning tax systems do), but to actively manage its downsides: protect essential goods through well-targeted exemptions, ensure VAT proceeds visibly fund services that benefit lower-income households, and continue shifting the overall tax mix gradually toward income tax, as Tanzania has already been doing since around 2010.
05 — SynthesisCross-Cutting Synthesis: VAT in One Picture
From the single largest tax source in the 2000s to a strong second place today, VAT has never stopped being one of the two or three most important levers in Tanzania's tax system.
By design, VAT takes a proportionally larger share of income from lower-income households than from wealthier ones — an equity cost that grows more acute during periods of inflation.
VAT's tight link to consumer spending and trade volumes makes it more exposed to economic shocks than income tax, as 2020's outright decline demonstrated.
Targeted exemptions, transparent use of VAT proceeds, and continued growth of the income-tax base can all soften VAT's downsides without sacrificing its revenue-raising efficiency.
06 — RecommendationsPolicy Directions to Influence VAT Strategy
Priority 1 — Measure the Real Burden
- Commission a formal VAT tax-incidence study to quantify exactly how much of income different income groups spend on VAT, replacing assumption with local evidence.
- Use that evidence to periodically re-assess and update the VAT exemption list against a current, realistic basket of basic necessities.
Priority 2 — Build in Volatility Planning
- Explicitly model VAT's higher year-on-year volatility (including a repeat of a 2020-style shock) into medium-term fiscal frameworks and contingency reserves.
- Track VAT collection against consumption and import indicators in near-real time, to catch early warning signs of a slowdown before it appears in annual totals.
Priority 3 — Keep Rebalancing Toward Income Tax
- Continue the multi-decade shift toward income tax through sustained TIN/EFD digitalisation and formal-sector employment growth, gradually reducing the relative weight VAT carries.
Priority 4 — Make VAT's Use Visible
- Publish clear, accessible reporting connecting VAT revenue to specific public services (health, education, water), so households can see a tangible return for what they pay on everyday purchases.
"VAT is not the villain of Tanzania's tax story, nor is it a free lunch. It is an efficient, historically dominant revenue tool that also asks more, proportionally, of those with the least. The policy task is not choosing between VAT and growth — it is making sure the growth VAT helps fund actually reaches the households who feel its weight the most."
— TICGL / Tanzania Economic Research Institute (TERI)
07 — Sources & Data NotesReferences, Data Sources and Limitations
Tanzania Economic Research Institute (TERI), for TICGL, analysis isolating VAT (import + domestic combined) from the Ministry of Finance and Planning's monthly "Government Budgetary Operations" data (IMF format), 2000-2025 — Part III of a series that began with Uchambuzi wa Takwimu za Mapato na Matumizi ya Serikali (2000-2026) (Part I) and Uchambuzi wa Kina wa Mapato na Kodi ya Serikali ya Tanzania (2000-2025) (Part II). All figures in this analysis are computed directly from that dataset by TICGL/TERI.
- Primary data: Ministry of Finance and Planning, United Republic of Tanzania — monthly Government Budgetary Operations tables (IMF format), January 2000 - December 2025.
- Method: Monthly import VAT and domestic VAT sub-components summed into annual totals and combined into a single "Total VAT" series, 2000-2025; residual customs-duty-only and excise-duty-only amounts computed by subtraction; all series expressed as % of total tax revenue, annually and by five-year period.
- Known limitations: This analysis does not itself contain household-level spending-pattern data, so its statements about VAT's regressive burden reflect well-established international public-finance theory and evidence rather than a Tanzania-specific tax-incidence calculation; a dedicated household-survey-based incidence study (as recommended above) would allow a precise, locally-grounded estimate. The explanation offered for the 2020 VAT decline (COVID-19) and other year-to-year moves are economically-informed interpretations consistent with known events, not statistical proof of causation from this dataset alone.
- Related TICGL analysis: TICGL/TERI, "Tanzania Government Revenue & Expenditure, 2000-2026" (Part I) — read here; "Tanzania Government Revenue & Tax Structure, 2000-2025" (Part II) — read here.
08 — Quick AnswersFrequently Asked Questions
What share of Tanzania's tax revenue comes from VAT?
Combining VAT charged on imports and VAT charged on domestic transactions, VAT supplied about 31.2% of total tax revenue in 2020-2024 — the second-largest single tax source after income tax (36.2%), and ahead of customs duty (20.5%) and excise duty (4.0%).
Was VAT always Tanzania's largest tax source?
Yes, for roughly the first decade of this data. VAT supplied 37.9% of tax revenue in 2000-2004, ahead of income tax's 25.8% at the time. Income tax overtook VAT as the single largest tax source only around 2010, as formal-sector employment and TRA's electronic tax systems expanded.
Why is VAT considered a regressive tax?
VAT is charged at the same rate regardless of a buyer's income. Because lower-income households spend a much larger share of their total income on basic necessities than higher-income households do, VAT takes a proportionally bigger bite out of a poorer household's income — the technical definition of a regressive tax.
Does relying on VAT help or hurt Tanzania's economic growth?
It depends on which kind of growth is meant. VAT is generally considered less distortive to investment and business decisions than corporate or income tax, which can support aggregate GDP growth. But because VAT reduces the purchasing power of lower-income households — who spend nearly all their income and therefore drive a large share of domestic consumption — heavy reliance on it can also dampen consumption-led, inclusive growth if not paired with targeted relief and transparent use of proceeds.
Is VAT revenue growth in Tanzania stable?
VAT growth has been considerably more volatile than income tax growth, including an outright decline of 1.9% in 2020 during the COVID-19 pandemic, reflecting its close link to consumer spending and import volumes, both of which are highly sensitive to economic shocks.
Muhtasari kwa Kiswahili
Je, Utegemezi wa Serikali kwenye VAT ni Chanzo cha Ukuaji au Udumavu wa Uchumi wa Tanzania? — Ripoti hii ni Sehemu ya Tatu ya mfululizo wa uchambuzi wa TICGL/TERI wa bajeti ya Tanzania, ikijikita kwa kina kwenye kodi moja mahususi: VAT (ikijumuisha VAT ya bidhaa zinazoagizwa nje na VAT ya bidhaa/huduma za ndani), ikitumia takwimu zilezile za miaka 26 za Wizara ya Fedha.
Matokeo makuu: VAT ilikuwa chanzo kikubwa zaidi cha kodi Tanzania kwa muongo mzima wa mwanzo (asilimia 37.9 ya kodi yote, 2000-2004), kabla kodi ya mapato haijaipita karibu 2010. Leo hii, VAT bado ni chanzo cha pili kwa ukubwa (asilimia 31.2, 2020-2024) — mbele ya ushuru safi wa forodha (20.5%) na ushuru wa bidhaa maalum (4.0%). Kwa sababu VAT inatozwa kwa kiwango kilekile bila kujali kipato, inachukua sehemu kubwa zaidi, kwa uwiano, ya kipato cha kaya za chini kuliko za juu — hali inayozidi kuwa mbaya wakati wa mfumuko wa bei. VAT pia ni chanzo kisicho na uthabiti zaidi kuliko kodi ya mapato — ilishuka kwa asilimia 1.9 mwaka 2020 wakati wa UVIKO-19, punguzo pekee lililorekodiwa katika miaka 26.
Hitimisho kuu ni kwamba VAT si kodi mbaya kwa asili — ni chombo chenye ufanisi wa hali ya juu kwa Serikali kukusanya mapato bila kuathiri moja kwa moja uwekezaji. Lakini kutegemea VAT kwa kiwango hiki bila hatua za kutosha za kulinda kaya za kipato cha chini kunaweza kudhoofisha aina ya ukuaji unaogusa moja kwa moja maisha ya Watanzania wengi, hata kama Pato la Taifa kwa ujumla linaendelea kukua. Suluhisho si kuiacha VAT, bali kuiboresha kupitia misamaha inayolengwa vizuri, uwazi wa matumizi ya mapato yake, na kuendelea kuimarisha kodi ya mapato kama nguzo mbadala.
- Sehemu ya VAT katika Kodi Yote: asilimia 31.2 (2020-24) — chanzo cha pili kwa ukubwa
- Kilele cha Kihistoria cha VAT: asilimia 44.0 (2005) — kilikuwa chanzo namba moja wakati huo
- Kodi ya Mapato Sasa Namba Moja: asilimia 36.2-39.3 (2020-2025)
- Punguzo Pekee la VAT: asilimia -1.9 (2020, wakati wa UVIKO-19)
- Asili ya Mzigo: VAT inagusa kaya za kipato cha chini kwa uzito mkubwa zaidi, kwa uwiano wa kipato chao
Chanzo: Tanzania Economic Research Institute (TERI), kwa ajili ya TICGL, uchambuzi wa VAT — Sehemu ya Tatu ya mfululizo wa bajeti, Septemba 2026.