Prenups
Prenups: the complete guide
A prenup is a legal agreement couples sign before marriage to outline how finances work. Learn its meaning, benefits, and options for 2026.
The Learn hub is Neptune's guide to the money and legal decisions couples face when they get married. Start with prenups, estate planning, or taxes: each topic answers one question at a time, written and reviewed by attorneys, then points you to the right next step when you're ready to act.
Prenups
A prenup is a legal agreement couples sign before marriage to outline how finances work. Learn its meaning, benefits, and options for 2026.
Guardianship, wills, and trusts
The 2026 estate planning checklist for married couples: wills, trusts, beneficiary forms, titling, and the documents every household needs.
Taxes
Married filing jointly usually wins in 2026, but student loans and medical bills can flip the math. Compare 2026 brackets and how to choose.

How postnuptial agreements work in Texas: partition and exchange rules, cost with a lawyer ($4k-$10k+), the process, and how couples build one together.
Aug 21, 2026

How postnuptial agreements work in California: fiduciary duty rules, community property, cost ($4k-$10k+), and the process couples follow with attorneys.
Aug 21, 2026

How Florida postnups work: enforceability rules, financial disclosure, equitable distribution, and what working with an attorney costs.
Aug 21, 2026

There's no deadline for a postnup. Sign one months or decades after your wedding. Learn timing, enforceability, and how to work with an attorney.
Aug 19, 2026

Yes, you can write a postnup yourself, but courts often won't enforce it. See why separate counsel matters and how enforceable agreements get built.
Aug 19, 2026

A postnuptial agreement costs $1,000-$3,000 for simple finances and $10,000+ for complex ones. See flat fee vs hourly pricing and costs by state.
Aug 19, 2026
Guardianship, wills, and trusts

Learn how to fund a trust by transferring real estate, accounts, and other assets into it correctly, and why funding is the step that makes your plan work.
Aug 19, 2026

An attorney-drafted revocable living trust costs $2,000-$3,500, with complex plans reaching $10,000+. See 2026 pricing by service model and complexity.
Aug 19, 2026

If you die without a will, state intestacy laws decide who inherits. Learn who gets what, how probate works, and how to plan ahead with expert help.
Aug 19, 2026

A pour-over will moves any assets left outside your living trust into it after death. Learn how it works, why you need one, and California rules.
Aug 17, 2026

A durable power of attorney lets a spouse manage finances or medical care during incapacity—marriage alone doesn't grant that authority automatically.
Aug 17, 2026

Learn what a successor trustee does, how they differ from an executor, and how to choose the right person or institution to manage your trust.
Jul 29, 2026

Should high income couples in NY or CA file jointly or separately? Compare 2026 brackets, SALT caps, and state rules to decide.
Mar 30, 2026

How RSUs are taxed in California in 2026: vest-day ordinary income, withholding gaps over 15 points, and community property rules for married founders.
Mar 26, 2026

New York estate tax explained for high income families. Learn how the NYS estate tax cliff 2026 works, what the $7.35M exemption means, and how trust protects.
Mar 11, 2026
See how Neptune connects you with attorneys and tax professionals for prenups, estate planning, and taxes.