What is the 2026 standard deduction for a single filer?
16,100 US dollars, from Rev. Proc. 2025-32 (2026 inflation adjustments), section 4.14(1). A filer aged 65 or older, or blind, adds 2,050 US dollars for each condition.
| Standard deduction | 16,100 US dollars |
|---|---|
| Additional standard deduction for age 65 or older or blind, for each condition | 2,050 US dollars |
| Source | Rev. Proc. 2025-32 (2026 inflation adjustments), published 2025-10-09 |
| Figures last checked | 2026-10-01 |
| Status of the year | current |
Frequently asked questions
Standard deduction and tax brackets for a tax year?
get_tax_parameters returns the standard deduction, tax brackets, capital gains thresholds, retirement limits or self-employment figures for 2025 or 2026, each with the IRS document and section it was read from.
It also says whether the year is current or was amended by a later law or notice, and when the table was last verified. It does not give advice and does not cover state taxes. Tool: get_tax_parameters on https://tax.openkrill.app/mcp.
IRS business mileage rate on a date?
get_mileage_rate returns the business, medical and charity rates in cents per mile in force on the date you give, with the IRS notice that set them.
Rates go back to 1 January 2022. It does not add up trips or work out a deduction. Tool: get_mileage_rate on https://tax.openkrill.app/mcp.
When is the next estimated tax payment due?
tax_deadlines returns the four estimated payment dates, the filing date and the extended filing date for a tax year, with weekend and holiday moves applied.
Pass as_of with today's date to get the next deadline. It covers federal individual dates only, not state dates or disaster postponements. Tool: tax_deadlines on https://tax.openkrill.app/mcp.
Estimate federal tax on wages and freelance income?
estimate_federal_tax returns taxable income, ordinary tax, self-employment tax, the total and the marginal and effective rates, using the standard deduction.
It lists its assumptions and what it leaves out, such as credits, state tax, itemized deductions and the alternative minimum tax. It is an estimate, not tax advice and not a return. Tool: estimate_federal_tax on https://tax.openkrill.app/mcp.
Do I need to register for VAT in France?
tax_duty says whether a seller must register for VAT or sales tax in a place, with the limit, the standard rate, where to register and dated official sources.
It covers the 27 EU states with the 10,000 euro One Stop Shop limit, the United Kingdom and 14 US states. It does not cover sales to businesses, reduced rates or local taxes, and it does not register anything. Tool: tax_duty on https://tax.openkrill.app/mcp.
Run it yourself
The answer at the top of this page comes from a real call on 2026-10-24. Call the tool on the server for current data. The server is Tax Numbers at https://tax.openkrill.app/mcp, with no key. Install steps: ChatGPT, Claude, Cursor, VS Code, Pi. The full tool list is in the install guides.