Contact
Bug report, idea, or just want to say hi — email works best.
I try to get back within a day or two. If it is a weekend, give me a bit longer. Every message gets read and most get a reply. If you do not hear back within 3 business days, check your spam folder — occasionally replies land there.
Bug reports
Found something broken? I want to know. A good bug report includes:
- Which calculator or page — the URL or tool name.
- What numbers you typed in — the exact inputs that triggered the issue.
- What you expected vs. what happened — the specific discrepancy.
- Screenshot if you can — a picture of the wrong result is worth a thousand words.
- Your browser and device — Chrome on Windows, Safari on iPhone, etc. Some issues are browser-specific.
That is all I need. No need for a fancy form. I will confirm receipt and let you know when it is fixed. If the bug affects a calculation result, I will also update the Methodology page to reflect the correction.
Calculator ideas
Got a tool you wish existed? Let me know. I am always looking for useful calculators to build next. The best suggestions include:
- The specific question — "I want to know if I should X or Y" is more useful than "add more calculators."
- The inputs and outputs — What numbers go in? What result do you need?
- Why existing tools do not cut it — What is missing from what is already out there?
I cannot build everything, but I prioritize suggestions that help the most people. If I build your suggestion, I will credit you (by name or anonymously — your choice) in the tool description.
Corrections & updates
If you spot a factual error — a wrong formula, an outdated rate, a misleading explanation — please tell me. I would rather fix a mistake than leave it live. Corrections to calculation methods are updated within 48 hours. Factual corrections to blog posts are updated with a note at the top of the article.
When you flag a correction, please include the correct information and a source if you have one. I verify every correction against primary sources (CFPB, Federal Reserve, IRS) before publishing.
Advertising
For ad-related questions, put "Advertising" in the subject line. PayoffCalcs uses Google AdSense to cover hosting costs. I do not sell direct ad placements, do not accept payment for product mentions, and do not allow sponsored content that is not clearly labeled.
Response times
- Bug reports: Acknowledged within 24 hours, fix within 1-7 days depending on severity.
- Calculator suggestions: Acknowledged within 48 hours. Built based on priority and complexity.
- General questions: Replied within 1-3 business days.
- Corrections: Verified and fixed within 48 hours.
If your matter is urgent (a bug affecting a real financial decision), put "URGENT" in the subject line and I will prioritize it.
Last updated: August 8, 2026