Every autumn the same question surfaces: can I still do something to lower my profit, and thus my bill? The answer is yes, provided you know the right levers. Some shifts are entirely legal and sensible, like timing investments smartly. Other popular tricks, such as deliberately delaying invoices, simply do not work for tax. This article lines up the real levers, plus why shifting profit yields more than the bracket rate suggests.

Why shifting pays: the phase-out of credits

Between roughly € 40,000 and € 80,000 of profit each extra euro costs not only the bracket rate but also erodes your tax credits. The real burden on the last euros thus quickly exceeds 45%. Moving profit from a peak year to a leaner one can save hundreds to thousands of euros even when the paper rate stays equal. Exactly why a November interim profit check, deciding on large outlays only then, makes sense.

Lever one: timing investments

The strongest lever is the small-scale investment deduction: 28% extra deduction once you invest over € 2,900 in a year. Just below that threshold in December? Pulling forward an already planned purchase, a laptop, machine or van, can suddenly activate hundreds of euros in deductions. The reverse works too: already high in this year's bracket with an empty next year, then spread. Starters hold an extra lever: arbitrary depreciation pulls depreciation into the year where it yields most. And whoever sold an asset at a book profit parks it via the reinvestment reserve.

Lever two: pulling costs forward

Costs covering at most twelve months ahead are deductible in the year of payment. Think an annual software or trade literature subscription closed in December, stock and materials you need anyway, or spring course fees. Overdue maintenance on business assets done this year counts too. Mind the difference with investments above € 450: those are capitalised and depreciated, so they lower year-one profit only partly, see capitalise or deduct at once.

November is the moment, not 30 December

Draw up a November interim: profit to date plus the expected remainder. Set it against the KIA brackets, your investment wishes and the credit phase-out zones, then decide deliberately what still happens this year and what crosses the boundary. Working with a bookkeeper, this is the conversation of the year. Afterwards also adjust your provisional assessment to the new expectation; that prevents tax interest and a spring surprise.

Frequently asked questions

Can I quickly buy all sorts of things in December to save tax?

Only outlays you would make anyway truly pay: you save at most some 40 to 50 cents of tax per euro spent. Buying something unnecessary to save tax is loss by definition. The gain is timing useful outlays, not spending itself.

Does a December down payment already count for the KIA?

For the KIA the moment of committing counts, so the order or signed quotation. However: while the asset is not yet in use, the deduction is capped at what you have paid. Ordering and paying a deposit in December thus sets the deduction in motion.

Can I still pay my partner or child a work reward in December?

Only for work genuinely performed at a realistic amount. For an assisting partner the work reward and the assisting-partner deduction exist; that choice is made at filing, but the hours records must already exist. Constructing something retroactively does not work.

Can pulling profit into this year pay off?

Sometimes: in a lean year credits and the low bracket go partly unused while next year peaks. Deferring investments and pacing maintenance can then be smart. It is always about the burden difference between the two years, never deferral for its own sake.

This article provides general information based on the rules known for 2026 and does not replace personal tax advice. For your specific situation, we're happy to take a look with you.

Ilias Aarrass

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