How to check whether an address is still current
An address on a consumer record is a claim made at a point in time. By the time you use it, the person may have sold the house, moved to a rental, or never lived there in the first place. Before you send mail or knock on a door, you can test the claim against county parcel records: who owns the property, when it last sold, and where the tax bill actually goes. Each answer is a signal, and none of them is proof.
Key takeaways
- Treat the date on an address as seriously as the address itself; addresses five or more years old deserve a second look.
- A sale since the address date, with a different owner of record, is the strongest stale signal.
- The county mailing the tax bill to the property, to a person who owns it, is the strongest current signal.
- Parcel data tells you about a property, not a person's intent, and it only exists where a state publishes it.
Start with the age of the address
Every address on a record has a date, the last time a source saw the person there. That date does more work than people give it credit for. An address dated 2019 is not wrong, but by 2026 it has had 7 years to go stale. So the first filter is simple: weight an address by how recent its date is, and verify the old ones first.
CoverFi flags an address date of 5+ years as a warning on its own (the old_address_date signal). That is a caution, not a conclusion.
The parcel signals that matter
County assessors publish parcel rolls: for each parcel, the owner of record, the sale history, the assessed value, and the address where the tax bill is mailed. Matching the address on a person's record to a parcel gives you 6 useful signals:
| Signal | What it means | How to read it |
|---|---|---|
| Sold since the address date | The parcel changed hands in or after the year of the address date, and the owner is not this person | Strongest stale signal |
| Other owner | Someone else owns the parcel | Informational; a company or trust owner suggests the address may be leased |
| Owner-occupied | The person owns the parcel and the county mails the tax bill there | Strongest current signal |
| Tax bill elsewhere | A property the person owns sends its tax bill to a different address | A warning that they receive mail somewhere else |
| Recent permits | Building permits were issued after the address date | Informational; someone is investing in the property |
| Old address date | The address is five or more years old | A warning on its own |
Put these together into a verdict. CoverFi's address check reports 4: likely stale, check, likely current, or no signal. Any stale signal makes it "likely stale"; any warning makes it "check"; any current signal makes it "likely current". Those are verdicts about the evidence, not probabilities.
A worked example
Say a record lists a 2019 address for a person at a single-family home. The parcel roll shows the home sold in 2022 to a different owner, with the person not listed anywhere. That is a stale signal: the property changed hands after the address date, and the person is not the owner of record. The right move is to deprioritize that address and look for a newer one, not to send the letter anyway.
Change one fact. The roll shows the person as owner, last sale in 2016, and the county mails the tax bill to the same property. That is the owner-occupied signal, and the address earns "likely current" even with an older date.
What parcel data cannot tell you
Parcel records are good evidence, with 4 real limits:
- Coverage is regional. The data exists where a state or county publishes it. CoverFi's address check covers Florida so far and says so for other states.
- Ownership is not residence. An owner can live elsewhere, and a renter does not appear on a parcel roll at all.
- Matching is imperfect. Parcels are matched on state, ZIP, house number, and street, with condos narrowed by unit, and a small share can still mismatch.
- Third-party names stay private. The check names an owner only when it matches the person on the record, so you will not see a stranger's name.
This kind of check is contact-data quality evidence. It is not an input to credit, insurance, employment, or housing decisions, and it should stay out of any workflow that makes one.
A 5-step checklist
- Note the address date first, and flag anything 5+ years old.
- Match the address to a parcel and read the sale year against the address date.
- Check whether the person is the owner of record and where the tax bill goes.
- Treat a stale signal as a reason to find a newer address, not as a final answer.
- Record which source and which date each conclusion came from.
For the wider workflow, the skip tracing guide covers how addresses, phones, and emails fit together, and the identity resolution guide explains how to weigh matching evidence.
Frequently asked questions
How long is an address good for?
There is no fixed lifespan. The older the date, the more likely it has changed, so verify addresses of five years or more before relying on them.
Can I check an address outside Florida?
Not with CoverFi's address check yet; it covers Florida parcel data so far. Other counties may publish their own rolls.
Does a sale always mean the person moved?
Not always, because a person can sell and still receive mail there, or the sale can be a transfer into a trust. That is why a sale is a stale signal rather than a verdict by itself.