Your data, in plain words.

Who we are

We are My Cost Segregation LLC, a Texas company. We build cost segregation studies. This page covers mycostsegregation.com and the tools on it. If you have a question, email us at hello@mycostsegregation.com.

What we collect

We collect only what it takes to price, build, and defend your study.

• Who you are. Your name, email, and phone if you give it. For a partner firm, the firm name and your role there.
• Your property. The address, what you paid, when you bought it, and the facts you tell us about it. Your closing statement and other documents you upload.
• Your photos. The photos you upload on the Photos step, and the notes you add to them.
• Your signature. When you sign the engagement letter, we record your name, email, the date and time, your IP address, and your browser. That is how we prove the letter was signed.
• Your payment. We never see your card number. Stripe handles the card. We keep the receipt and the amount.
• How the site is used. Which pages people visit, and errors the site hits. Error logs hold what broke, not who you are.
• How the study form goes for you. While you fill in a study, we note which steps you open, which answers the form flags, and when a save, an upload, or the page itself fails. We note the name of each step and question, never what you typed or the files you upload. It helps us fix what gets in your way. We keep these notes for 90 days.

How we use it

• To give you an estimate and to build your study.
• To email you about your study, your estimate, or your account.
• To take your payment and send a receipt.
• To sign the engagement letter and keep a record of it.
• To defend your study if the IRS asks about it.
• To fix bugs and make the site better.

We do not sell your data. We do not show ads. We do not share your study with other clients.

How long we keep it

Most records have a clock. When the clock runs out, the record is gone. Your study is the exception; the paragraph under the table says why.

What	How long
A study you are still building (a saved draft)	30 days after your last save
An estimate, calculator result, or contact form	1 year
Feedback you send us	1 year
Our notes on how the study form went for you	90 days
A preliminary analysis link and its PDF	Up to 14 days
Public map and county data we looked up for a property	Up to 30 days
Your sign-in	7 days, then you sign in again
A staff sign-in reset link	15 minutes
A client invite or reset link	48 hours
An active study, its photos, and its documents	As long as the study is open
A closed (archived) study and its files	Until we delete the study
A note that a study was done at an address	No set end date
A note that you asked us to stop our emails (a code for your email, not your email)	No set end date
Your signed engagement letter and the signing record	No set end date
Your payment record	No set end date
Your issued study report	Kept after you delete your study
Your account (email and password)	Until you ask us to close it

A study is the one record with no clock. When a study is closed, its photos and documents stay in storage until we delete the study. Closing a study hides it; it does not delete anything, and nothing we run deletes it later on its own. That is on purpose: your study is the support for a depreciation deduction, and that support has to hold up for as long as you hold the property, plus the years after you sell it. If you want it gone sooner, ask us and we will delete the study. We keep the signed letter and the payment record. Those are the records of our agreement. We also keep one short note per property: the address, the owner's name, the year, and the headline figure of the study. That note is how we avoid selling a second study on the same property.

Who else sees it

A few services help us run the site. Each one gets only what its job needs.

• Cloudflare hosts the site and stores your files. It also runs the "are you a robot" check on our forms.
• Stripe takes your payment. Stripe gets your name, your email, the amount, and a short label for the study.
• Resend sends our email. It gets your email address and the message.
• Google suggests addresses as you type one. The text you type is sent to Google for the suggestion. We may switch to Geoapify for the same job; the same text would go there. We also use Google Analytics to count visits on our public pages; the script that runs it is served from googletagmanager.com.
• Google Fonts serves the typefaces this site is set in, from fonts.googleapis.com and fonts.gstatic.com. That happens on the public pages and inside your account. Your browser asks Google for the font file, so Google sees your IP address and which page asked for it. We send nothing else, and no font request carries your name or your study.
• Have I Been Pwned checks a new password against known breaches, at api.pwnedpasswords.com. We never send your password, and we never send its full fingerprint: only the first five characters of that fingerprint leave us. The service returns every breached password sharing those five, and the comparison happens on our side. If the check is down, we skip it rather than block you.
• County property records. When you enter an address, we send the street address to that county's own property records office. This tells us the land and building split the county already has on file. About 976 counties across the country publish this data online. We never send your name.
• Public map data from the U.S. Census Bureau, FEMA, the EPA, Esri, and OpenStreetMap. We send the property address or its map point, never your name. We use it to check the flood zone, the lot, and nearby sites, and we keep what comes back for up to 30 days.
• xAI suggests a label for each photo you upload on the Photos step, like "roof" or "kitchen." The photo is sent to xAI for that step. You can change or remove any label.
• xAI also reads your documents, but only when you press "Read my documents" on the Documents step. Uploading a document does not send it anywhere. Pressing that button does. A scanned document goes to xAI as the file itself. A typed one goes as the text we pulled out of it, which can include your name, the purchase price, and your loan number. When we send the whole file, we ask xAI to delete it as soon as we have the fields. You review every value before it counts, and you can skip this and type the fields in yourself.
• Crisp runs live chat when the chat button is on the page. What you type in the chat goes to Crisp.

Your tax preparer or partner firm sees your study only if you share it with them, or if they brought you to us.

Cookies

We set one cookie to keep you signed in. Google Analytics sets its own cookies on our public pages to count visits. We do not use ad cookies.

How we protect it

Your data travels over an encrypted connection. A staff sign-in reset link works once and dies in minutes. Our team can see any client's study. We do not share it outside the firm. Deleting a study removes its photos, its documents, and the report copies we saved for sharing. We keep the final report we gave you, as our record of the work. It stays after the study is deleted.

Your choices

• See or fix your data. Email us and we will send you what we have, or fix what is wrong.
• Delete your data. Read this first: your study, its photos, and its documents are the support for a depreciation deduction you have already claimed, and that support needs to last for as long as you hold the property, plus the years after you sell it. Deleting it leaves you without it, and we cannot get it back. If you still want it gone, email us and we will delete your study, your drafts, and your account. We keep the signed letter and the payment record, because the law makes us keep records of a sale. We keep the final report we gave you too, as our record of the work. We also keep the one-line note that a study was done at your address.
• Stop our emails. Every marketing email has an unsubscribe link. We keep a note that you asked, so it sticks. We still send emails about a study you paid for.

Write to hello@mycostsegregation.com. We answer within a few business days.

Kids

This site is for property owners and their advisors. It is not for anyone under 18. We do not knowingly collect data from a child.

Changes

If we change this page, we change the date at the top. A big change to what we collect or share gets an email to active clients.