Tax sale research tools compared
Five tools, five different jobs. Pick by what you actually need, not by who has the longest feature list.
Disclosure: Tax Sale Intel is our product. Every other tool’s price and features come from its own public pages, checked Oct 12, 2026. We did not buy their plans for this comparison.
Which tool fits which job
| If you need | Start with |
|---|---|
| Nationwide tax deeds with a ranked deal score | DeedFlex |
| Tax liens or overages across all states at one flat price | FastLien |
| Valuation comps and portfolio management for a fund | Tax Sale Resources |
| A one-time county file or pre-auction owner outreach | LienSuite |
| Free research for LA, San Bernardino, Miami-Dade, or Wayne County | Tax Sale Intel |
Side by side
| Feature | Tax Sale Intel | DeedFlex | FastLien | Tax Sale Resources | LienSuite |
|---|---|---|---|---|---|
| Entry price | $0 (ad-supported) | $59/mo | $49/mo | $48.50/mo billed yearly; $97 monthly | $0 sample; $19.99/mo |
| Paid plan | $19.99/mo or $179.99/yr (no ads, alert emails) | $59/mo; $200/mo Pro Plus | $49/mo or $490/yr | $97 / $147 / $497 per month | $19.99 / $79 per month; $27–$39 per county |
| Free plan | Yes | No | No (trial offered) | No ($1.99 trial) | Partial (sample file) |
| Coverage | 4 counties (LA, San Bernardino, Miami-Dade, Wayne) | 761 counties, nationwide | All US states | Nationwide | 421 browsable counties |
| Upcoming auction lists | Yes, for those 4 counties | Yes | Yes | Yes | Not stated |
| Past auction records | Yes, dated, per county | Not stated | Partial (auction analytics) | Yes (most auctions) | Not stated |
| Official-source links on every record | Yes | Partial (calendar links county sources) | Not stated | Not stated | Not stated |
| Deal or opportunity score | No | Yes (0–100) | Not stated | Partial (tag and grade parcels) | Yes (grades) |
| Alerts | Yes (in-portal free; email on County Lite) | Yes | Not stated | Premier (saved search notifications) | Not stated |
| CSV export | Not yet | Yes (5 per day on Pro) | Not stated | Yes (Excel) | Yes |
| API | No | Pro Plus | Not stated | Enterprise | Not stated |
| Surplus / excess proceeds data | No | Not stated | Yes | Not stated | Yes (20 counties) |
| Skip tracing / owner lookup | No | Yes (3 lookups/mo on Pro) | Yes (5 free per month) | Not stated | Yes |
“Not stated” means the vendor’s public pages did not say, not that the feature is missing.
None of these runs the auction
You still register and bid on the county’s official platform. Our tax sale calendar links each upcoming sale.