'Bachelor in Paradise' Star Amanda Josh and I Are For Real ... And We're Making Bank

11/8/2016 12:20 AM PST

Amanda Stanton claims she and Josh Murray have taken their "Bachelor in Paradise" relationship to the next level by living together with a soaring household income.

Amanda shared financial info as part of her custody battle with ex-husband/baby daddy Nick Buonfiglio. In the docs, she says she's making more than $13k a month from her fashion blog and social media. She also lists live-in fiance Josh's monthly income at $10k.

According to the docs, Amanda's paychecks increased big-time after her recent appearance on 'BiP' -- thanks to new endorsement ops. This seems to support Nick's claim she's making way more dough these days ... which is why he wants more child support for their 2 daughters.

One more tidbit/confession from the docs ... Amanda spends 2 grand a month on clothes.