什么是良好的债务收入比（DTI）？完整指南
什么是债务收入比？
Your debt-to-income (DTI) ratio is a key financial metric that compares your total monthly debt payments to your gross monthly income. Lenders use DTI to assess your ability to manage monthly payments and repay borrowed money. It's expressed as a percentage: the lower your DTI, the less risky you appear to lenders. A healthy DTI can help you qualify for better interest rates on mortgages, auto loans, and credit cards.
你的债务收入比（DTI）是一个关键的财务指标，用于比较你每月总债务还款额与每月总收入。贷款机构使用DTI来评估你管理月度还款和偿还借款的能力。它以百分比表示：DTI越低，你在贷款机构眼中的风险就越小。健康的DTI可以帮助你获得更优惠的抵押贷款、汽车贷款和信用卡利率。
如何计算你的DTI比率
To calculate your DTI, add up all your monthly debt obligations — rent or mortgage, car payments, credit card minimums, student loans, personal loans, and any other recurring debt payments. Divide this total by your gross monthly income (before taxes) and multiply by 100. For example, if you pay $2,000 in monthly debt and earn $6,000 per month, your DTI is 33.3%. Note that living expenses like utilities, groceries, and insurance are not included in DTI calculations.
要计算你的DTI，将你所有的月度债务义务相加——租金或抵押贷款、汽车贷款、信用卡最低还款额、学生贷款、个人贷款以及任何其他经常性债务还款。将这个总额除以你的月总收入（税前）再乘以100。例如，如果你每月支付2,000美元的债务，月收入为6,000美元，你的DTI为33.3%。请注意，水电费、食品杂货和保险等生活费用不计入DTI计算。
前端DTI vs 后端DTI
Lenders typically categorize DTI as follows: Excellent (28% or below), Good (29-36%), Fair (37-43%), and Needs Improvement (above 43%). Most mortgage lenders prefer a front-end ratio (housing only) under 28% and a back-end ratio (total debt) under 36%. For conventional mortgages, the maximum back-end DTI is typically 43-45%, though some government-backed loans may allow higher ratios with compensating factors like a high credit score or large down payment.
贷款机构通常将DTI分类如下：优秀（28%及以下），良好（29-36%），一般（37-43%），需要改善（43%以上）。大多数抵押贷款机构偏好前端比率（仅住房）低于28%，后端比率（总债务）低于36%。对于传统抵押贷款，最大后端DTI通常为43-45%，尽管一些政府支持的贷款可能允许更高的比率，前提是有补偿因素如高信用评分或大额首付。
为什么贷款机构关注你的DTI
The front-end ratio only considers housing costs (mortgage or rent, property taxes, homeowners insurance, and HOA fees) divided by gross income. The back-end ratio includes all monthly debt payments. While both matter, the back-end ratio is the more comprehensive measure of your financial health. A high front-end ratio but low back-end ratio might indicate you're house-poor — spending too much on housing relative to income.
前端比率仅考虑住房成本（抵押贷款或租金、房产税、房屋保险和HOA费用）除以总收入。后端比率包括所有月度债务还款。虽然两者都很重要，但后端比率是你财务健康状况更全面的衡量标准。前端比率高但后端比率低可能表明你被房贷压垮了——相对于收入，住房支出过高。
如何改善你的DTI比率
To lower your DTI, you can increase your income (side hustles, career advancement), pay down existing debts aggressively, avoid taking on new debt, refinance high-interest loans to lower monthly payments, or consider debt consolidation. Even small improvements can make a difference — paying off a $200 monthly credit card minimum on a $5,000 monthly income improves your DTI by 4 percentage points.
要降低你的DTI，你可以增加收入（副业、职业发展），积极偿还现有债务，避免承担新债务，为高息贷款再融资以降低月供，或考虑债务合并。即使是小的改进也能产生效果——在月收入5,000美元的情况下，还清每月200美元的信用卡最低还款额，可以将你的DTI提高4个百分点。