US-UK tax tools, built on the current figures.
Quick answers to the questions we hear every day — thresholds, deadlines, penalties and eligibility, using this year's IRS and HMRC rates. Free, instant, and nothing you enter is stored.
US tax tools
IRS-side calculators: FBAR and FATCA thresholds, streamlined catch-up eligibility, deadlines and penalties — for Americans and green card holders abroad.
Add up your foreign accounts against the $10,000 FBAR threshold in seconds. See whether FinCEN Form 114 applies and whether Form 8938 looms behind it.
Behind on US taxes? Check in two minutes whether the IRS streamlined procedures fit your situation, and see which catch-up route applies instead.
UK tax tools
HMRC-side calculators: Self Assessment deadlines, late-filing penalties, registration and payments on account — for anyone in the UK system.