Lower excise duty is already in force in Latvia, but this does not guarantee a 20-cent reduction in fuel prices per litre. October's tax change alone has a theoretical impact of approximately 8 cents including VAT. International decisions influence supply and market expectations rather than setting the price on a Latvian filling station receipt.
Information checked on the morning of 5 October 2026. The article distinguishes rules in force, proposals and editorial calculations; price scenarios are not forecasts.
What has already changed in Latvia — and what does it mean per litre?
The Law on Limiting Increases in Petroleum Product Prices sets temporary rates through 31 December 2026. The State Revenue Service (VID) table allows a comparison before and after 1 October:
- Diesel: excise duty has fallen from €396 to €330 per 1,000 litres.
- Unleaded petrol: from €555 to €490 per 1,000 litres.
- Marked diesel for farmers: the rate remains €21 per 1,000 litres; this additional reduction does not apply to it.
Fuel remains subject to the standard VAT rate of 21%. The editorial calculation, assuming full pass-through of the tax cut and all other price components remaining unchanged, is:
- Diesel: (396 − 330) / 1000 × 1.21 = €0.07986, or 7.986 cents per litre.
- Petrol: (555 − 490) / 1000 × 1.21 = €0.07865, or 7.865 cents per litre.
This is October's additional effect relative to September's rates. The spring diesel duty cut must not be counted again as a new October reduction. Nor does the calculated figure of nearly 8 cents promise an identical day-on-day fall in filling station prices: procurement costs may change at the same time.
The G7 reserve release: support for supply, not a discount voucher
The G7 statement of 2 October sets out a coordinated release of 100 million barrels over four months, with a significant diesel share in the first 20 days. It frames this as fulfilling earlier commitments, accounting for action already taken; the volume cannot automatically be added to earlier announcements as wholly new supply.
The distinction between crude oil and finished fuel matters for businesses. Additional crude still needs to be transported and refined, whereas the availability of finished diesel affects the transport fuel market more directly. Using reserves can ease short-term pressure but does not, by itself, determine long-term price levels.
What did OPEC+ actually decide?
Seven OPEC+ countries agreed on 4 October to retain the production levels set for September 2026 for November. These are targets, not guaranteed actual production or exports. Therefore, “unchanged targets” does not mean that the quantity available on the market will remain unchanged.
This decision cannot simply be subtracted from the G7 reserve volume to produce a price forecast. One concerns the use of reserves over a specified period; the other concerns production policy. Actual supply and demand determine the outcome.
Why is the Brent price not Latvia's diesel price?
Reuters reported Brent futures at US$101.59 per barrel on 5 October at 06:34 GMT, or 09:34 Latvian time.
This is a quotation at a specific moment. It cannot directly determine the cost of your next fill-up. The US Energy Information Administration explains that fuel prices also include refining, distribution, retailing and taxes. This mechanism helps explain price formation, but the US cost proportions are not a breakdown of Latvian prices.
Oil is mostly traded in dollars, so the exchange rate also matters for euro area importers, as analysed by the European Central Bank. For a company's fuel budget, the price it pays in euros per litre matters in practice, rather than just the direction of Brent prices in the headlines.
ONLINE CLAIMS: what happened to “20 cents less per litre”?
Assessment: a guaranteed 20-cent reduction for everyone has not been confirmed. According to a 21 September LETA report published by LA.LV, Prime Minister Andris Kulbergs described the possible combined impact of several measures as up to 20 cents per litre. The package included excise duty, reserve costs and biofuel requirements. “Up to” is not the same as a guaranteed fixed reduction.
Moreover, on 1 October, the Saeima supported suspending the reserve service fee only in principle; its announcement states that a final reading is required. This proposal therefore cannot be counted as already in force simply because the originally announced date has arrived.
The Competition Council's (KP) analysis of the spring cut found diesel pass-through of 4.95 cents, about 58%, in posted pump prices excluding discounts; another method yielded 61–64%. Discounts were not analysed separately, and incomplete pass-through alone does not prove higher mark-ups. This does not measure October's outcome.
Editorial conclusion: it is wrong both to declare the 20-cent saving achieved and to conclude from a single receipt that the tax cut has not helped at all. A price may be lower than it would have been without the tax measure even if rising other costs mean the posted pump price has not fallen.
What does this mean for a company using 5,000 litres a month?
A calculation example, not a guaranteed saving: 5,000 litres of ordinary diesel × €0.07986 = a €399.30 reduction in the payment including VAT, assuming full pass-through of October's excise effect alone and no change in other costs.
If VAT on the purchase is fully deductible as input tax, the cost saving excluding recoverable VAT in this example is €330. Full deduction rights must not automatically be assumed for every vehicle. A 20-cent reduction, meanwhile, would reduce the payment including VAT by €1,000 — this optimistic scenario should not be treated in the budget as money already saved.
What should you check this week?
- Comparable prices. Choose the same fuel type, filling station and discount terms. Record the price before and after 1 October; do not confuse the posted pump price with a contract price.
- Your actual consumption. Calculate savings from litres purchased and the actual price difference, distinguishing cash flow including VAT from costs excluding recoverable VAT.
- Your supply contract. Establish how its tax component, procurement index and discount change. A larger discount does not, by itself, mean a lower final price.
- Next year's plan. The temporary rates apply through 31 December; do not budget for this relief throughout 2027 without a new legal basis.
Conditions exist for fuel prices to fall, but the actual benefit must show up on the invoice. Latvia's decision creates a calculable tax difference; global markets and retailers' pricing policies influence how much of it buyers will feel in the total price. For a business, the most reliable reference points are its actual procurement price and consumption.
Official information sources
- Law on Limiting Increases in Petroleum Product Prices
- VID: excise duty rates
- Value Added Tax Law
- G7 statement on energy security, 2 October 2026
- OPEC: decision by seven countries, 4 October 2026
- Saeima: proposal to suspend the reserve fee, 1 October 2026
- Competition Council: fuel market and tax pass-through
- EIA: factors affecting diesel prices
- ECB: oil prices and the US dollar
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