HMRC charges late payment interest (7.75% to 8.5% as of early 2026) plus penalties based on how overdue the payment is. For Self Assessment, this includes 5% of unpaid tax at 30 days, 6 months, and 12 months late. Penalties for VAT and PAYE often start with a percentage of the debt after 15–30 days.
The current late payment and repayment interest rates applied to the main taxes and duties that HMRC currently charges and pays interest on are: late payment interest rate — 7.75% from 9 January 2026. repayment interest rate — 2.75% from 9 January 2026.
Late payment interest (LPI)
LPI will be charged on tax outstanding after the due date, starting from the date the payment was due until is it received by HMRC in full. LPI is calculated as simple interest at a rate of 4% above the Bank of England base rate.
You might have to pay IRS penalties and interest if you file your federal income tax return after the April deadline, your due date isn't extended, and you end up with a tax bill. First, the IRS charges a 5% penalty per month on any tax due if your return is filed late. The penalty is capped at 25% of the tax owed.
Although there is no time limit for debt recovery, HMRC can't randomly investigate through decades worth of tax returns for any company on a whim. They need to have a genuine reason for investigating, and they must begin an enquiry no more than 12 months after the date a tax return was filed.
Are you the one who is planning to move abroad and wondering 'Can HMRC chase me abroad' once you are moved? Far and wide, it has been observed as a common fear amongst people. Well, the answer is yes, HMRC can approach you wherever you are liable to pay the tax bills.
The "777 rule" in debt collection, also known as the 7-in-7 rule, is a CFPB regulation (Regulation F) limiting calls: collectors can't call more than 7 times in 7 days for a specific debt, nor call within 7 days of a conversation about that debt. It aims to prevent harassment, applying to calls, texts, and emails, though exceptions exist, and the presumption of compliance can be rebutted by aggressive call patterns like rapid succession or highly concentrated calls.
If you don't file your tax return by the October 15 extension deadline, the IRS charges a failure-to-file penalty of 5% per month (up to 25%) on unpaid taxes, plus a failure-to-pay penalty (0.5% per month), and interest on the total amount due, potentially leading to significant costs, though you can request penalty abatement for reasonable cause, and if you're owed a refund, you generally won't face penalties but risk losing your refund if you wait too long (usually over 3 years).
The IRS $600 rule refers to a change in reporting requirements for third-party payment apps (like Venmo, PayPal) for taxable income from goods and services, where platforms must send a Form 1099-K if you receive over $600 in a year, intended to capture gig economy/side hustle income, though delays and phased implementation have adjusted the timeline, with current rules for 2024 using a higher threshold ($5,000) before fully phasing to $600 for future years, but remember all taxable income, regardless of form, must always be reported.
The IRS charges 0.5% of your unpaid taxes for each month or part of a month that your taxes remain unpaid. The failure to pay penalty has a maximum charge of 25% of your unpaid taxes. Be sure to pay your taxes within 10 days of the failure to pay notice. After 10 days, the penalty charge increases to 1%.
your partner or another close relative died shortly before the tax return or payment deadline. you had an unexpected stay in hospital that prevented you from dealing with your tax affairs. you had a serious or life-threatening illness. your computer or software failed while you were preparing your online return.
If you don't speak to HMRC to arrange a time to pay agreement, they'll charge penalties. You'll be charged a penalty when your payment is 30 days late, on 3 March - unless it's a leap year, when you'll be charged on 2 March. You'll also be charged another penalty again when the payment is 6 and 12 months late.
Appealing a PAYE or NIC Penalty
Employers have the legal right to appeal a penalty if they believe it has been wrongly issued or that mitigating circumstances apply. Appeals must generally be filed within 30 days of receiving HMRC's penalty notice.
HMRC have confirmed penalties will stop accruing where a time to pay agreement is reached. Again, no penalty is payable if the taxpayer has a reasonable excuse and HMRC has discretionary powers to reduce or waive penalties in appropriate circumstances.
The interest you can charge if another business is late paying for goods or a service is 'statutory interest' - this is 8% plus the Bank of England base rate for business to business transactions. You cannot claim statutory interest if there's a different rate of interest in a contract.
The following strategies can help businesses and individual taxpayers avoid HMRC fines for late payment and ensure they stay compliant with tax regulations:
The IRS "10k rule" primarily refers to the requirement for businesses and financial institutions to report cash transactions over $10,000 by filing Form 8300 (for businesses) or a Currency Transaction Report (CTR) (for banks), under the Bank Secrecy Act. This rule helps combat money laundering, tax evasion, and terrorist financing, requiring reporting for single transactions or related transactions totaling over $10,000 in cash within a year, with penalties for non-compliance.
To avoid the 22% tax bracket (or any higher bracket), focus on reducing your taxable income through strategies like maxing out 401(k)s and HSAs, deferring bonuses, tax-loss harvesting, smart charitable giving, and strategic asset location, understanding that higher rates only apply to income within that bracket, not your entire income.
The "20k rule" refers to the traditional IRS threshold for reporting income from payment apps and online marketplaces on Form 1099-K: over $20,000 in gross payments AND more than 200 transactions in a calendar year. While a law (the American Rescue Plan) temporarily lowered the threshold to $600, recent legislation, the One Big Beautiful Bill Act (OBBBA) (OBBBA), has reinstated the $20,000/200-transaction rule for tax years starting in 2025, providing relief for casual sellers and gig workers.
Can I file late without penalty because of the shutdown? No. The IRS still expects you to file by the October 15 extension deadline to avoid late-filing penalties.
The IRS can waive penalties if you demonstrate that your failure to comply with tax requirements was due to reasonable cause. Acceptable reasons include serious illness, natural disasters, or other events beyond your control that prevented timely tax filing or payment.
The 11-word phrase often cited to stop debt collectors is "Please cease and desist all calls and contact with me, immediately," which leverages your rights under the Fair Debt Collection Practices Act (FDCPA) to halt most communication, though it must be sent in writing via certified mail to be legally binding, and collectors can still notify you of lawsuits.